Software Engineer; Sr Python

Software Engineer (Sr.) - Python
Springfield, VA
Pay From: $155,000 per year

• Experienced Senior Software Engineer
• Active Top Secret clearance with ability to obtain SCI
• 10+ years of experience as a Software Engineer or a related area that demonstrates the ability to perform the duties associated with this work successfully
• Strong full-stack Python development experience
• Experience building and maintaining APIs (ex. FastAPI)
• Experience with Kubernetes and Dev Ops practices to support rapid deployment and sustainment
• Proven ability to work with pre-existing code bases, understand them quickly, and adapt functionality for new use cases
• Experience with web services architecture, design, and development
• Background working in secure cloud environments (e.g., AWS Gov Cloud, C2S)
• Understanding of geospatial systems, including imagery acquisition, geometry, and related workflows
• Familiarity with geospatial data tools and libraries (e.g., PostGIS, ArcGIS, GDAL)
• Prior exposure to DoD/IC mission applications
• BS or equivalent in Computer Science, Engineering, Mathematics, Information Systems, or equivalent technical degree

• Design, build, deploy, and maintain full-stack web applications, primarily in Python, with supporting JavaScript/Type Script front-end components
• Architect, implement, and manage containerized environments using Docker and Kubernetes, ensuring scalability, resilience, and high availability
• Define, build, and continually improve CI/CD pipelines for build, test, deployment to accelerate delivery while maintaining quality and security.
• Implement infrastructure as code (IaC) using Terraform, Cloud Formation, or similar tools to provision, configure, and manage cloud infrastructure.
• Integrate automated security scans, vulnerability assessments, static/dynamic code analysis, and compliance checks as part of the development pipeline.
• Monitor infrastructure, applications, and services to ensure high performance, availability, and reliability. Use logging, metrics, alerting tools (e.g. Prometheus, Grafana, ELK/EFK, Cloud Watch).
• Establish and maintain best practices for system configuration, version control, access control, and environment consistency (dev, test, staging, production).
• Collaborate cross-functionally with software engineers, security engineers, QA, and operations to ensure secure, efficient, and reliable software delivery.
• Troubleshoot and resolve production issues (application, infrastructure, deployment, network) in a timely and systematic manner.
• Ensure compliance with security policies, industry standards, and regulatory requirements (e.g. RMF, NIST 800-53, STIGs) as applicable.
• Participate in design and architecture reviews to ensure all systems are built with security, performance, and maintainability in mind.
• Provide technical guidance, mentor junior engineers, and document processes, runbooks, and architecture decisions.
• Engage with non-technical stakeholders (program managers, clients) to communicate status, risks, and tradeoffs.
• Stay abreast of emerging trends, tools, and best practices in Dev Sec Ops , cloud, container orchestration, and cyber/security.

Quadrant is an affirmative action/equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, status as a protected veteran, or status as an individual with a disability. "Healthcare benefits are offered to all eligible employees according to compliance mandated by the Affordable Care Act".